7-A=3

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Solution for 7-A=3 equation: 


Simplifying
7 + -1A = 3

Solving
7 + -1A = 3

Solving for variable 'A'.

Move all terms containing A to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -7 + -1A = 3 + -7

Combine like terms: 7 + -7 = 0
0 + -1A = 3 + -7
-1A = 3 + -7

Combine like terms: 3 + -7 = -4
-1A = -4

Divide each side by '-1'.
A = 4

Simplifying
A = 4

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